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#
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# Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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# All rights reserved.
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# This component and the accompanying materials are made available
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# under the terms of "Eclipse Public License v1.0"
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# which accompanies this distribution, and is available
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# at the URL "http://www.eclipse.org/legal/epl-v10.html".
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#
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# Initial Contributors:
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# Nokia Corporation - initial contribution.
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#
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# Contributors:
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#
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# Description:
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#
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use strict;
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use integer;
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package PARSER;
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require Exporter;
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@PARSER::ISA=qw(Exporter);
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@PARSER::EXPORT=qw(nextNonEmptyStrippedDownLine ungetNonEmptyStrippedDownLine);
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# @PARSER::nextNonEmptyStrippedDownLine is a global variable in this package
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sub strippedDownLine
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{
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my $strippedDownLine=shift;
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$strippedDownLine=~s/#.*$//;
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$strippedDownLine=~s/^\s+//;
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$strippedDownLine=~s/\s+$//;
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return $strippedDownLine;
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}
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sub nextNonEmptyStrippedDownLine
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{
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my $fileHandle=shift;
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if (defined(@PARSER::nextNonEmptyStrippedDownLine) && (@PARSER::nextNonEmptyStrippedDownLine>0))
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{
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if (@{$PARSER::nextNonEmptyStrippedDownLine[0]}!=2)
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{
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close($fileHandle);
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die("Error: internal error in \"PARSER.PM\"\n");
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}
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return @{shift(@PARSER::nextNonEmptyStrippedDownLine)};
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}
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my $buffer='';
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my $line;
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while ($line=<$fileHandle>)
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{
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$buffer.=$line;
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my $strippedDownBuffer=&strippedDownLine($buffer);
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if ($strippedDownBuffer!~/\\$/)
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{
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$strippedDownBuffer=~s/\\\n/ /g;
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if ($strippedDownBuffer ne '')
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{
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return ($buffer, $strippedDownBuffer);
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}
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$buffer='';
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}
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}
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if ($buffer ne '')
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{
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close($fileHandle);
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die("Error: file ends with a \"\\\"\n");
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}
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return ('', '');
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}
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sub ungetNonEmptyStrippedDownLine
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{
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my $arrayCopy;
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@$arrayCopy=@_;
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unshift(@PARSER::nextNonEmptyStrippedDownLine, $arrayCopy);
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}
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